How many cubic feet of earth are removed... ...to make a hole 4 feet wide by 7 feet long by 2 feet deep?
4*7*2=56 cubic feet
Is straigtforward, 4 x 7 x 2 = 56 cubic feet
You are surrounded by a 100 foot wide and 100 foot deep moat. You have a 40 foot tall ladder, matches, a gallon of water, and as much rope as you need.
How can you get across the moat?
A swimming pool is 100 ft. by 50 ft. and has an average depth of 6 ft. By the end of an average summer day, the water level drops an average of 1 ft. How many cubic feet of water are lost each day?
